Dictionary.net

• anesthesia of the lower half of the body; caused by injury to the spinal cord or by injecting an anesthetic beneath the arachnoid membrane that surrounds the spinal cord

2006 - WordNet 3.0
By Princeton University

• anesthesia of the lower half of the body; caused by injury to the spinal cord or by injecting an anesthetic beneath the arachnoid membrane that surrounds the spinal cord

2011 - English Dictionary Database
By DataStellar Co., Ltd